Car-axle lubricator.



O. MILLER.

CAR AXLE LUBRlCATOR.

APPLICATION FILED DEC.30.1916.

' Patented June 19, 1917.

FIGA.

INV'EJVTOR 042? M,

lg i a it shin le i- OTTO MILLER, 03? DALTON, MINNESOTA.

GAR-AXLE LUBRICATGR.

i i To till whomttmay 010mm.-

Be'it known that I, Orro Multan-a citizen of the United States, residing at Dalton, in

the county of Ottertail and State of Minne sot-a, have invented a new and useful Car- Axle Lubricat'or, of which the following is a specification.

My invention relates to lubricating devices for, car axles; and the object is to provide an elficient lubricating device by which to gradually feed lubricating oil to the journaled ends of the axles of railway cars.

In the accompanying drawing, Figure l is a substantially central vertical longitudh nal' section of the journaled end of a car axleand its journal box with my improved .rlubricator applied thereto and shown partly in section and secured in the usual lid 8 which is not insection. Fig. 2 is a bottom View of the main body 11 of the lubricator. Fig. '3v is a detail side view of the central rod 23 in Fig. 1. Fig. 4 is stop view or the oil cup OI'TGSGIVOII of the device. Fig. 5 is a right hand end view of the cap 14 in Fig. 1. Fig. 6 is an end'view of the collar 29 in Fig. l.

Referring to the drawing by reference numerals, 1 designates the regular journal box of-a car axle 2 in whose ends there are al ways central funnel shaped cavities 3 namely those provided for the centers of the lathe in which the axle was turned. 4: are the usual side-braces secured by vertical bolts 5 to the top and bottom of the journal box,

6 designates the usual pocket at the outer end of the journal box for holding cotton waste or similar absorbent material 7, satu-- rated with lubricating oil which is gradually taken up by the journal 2 when it retates. Said pocketis closed by an inclined lid 8 suspended from a pintle 9 and having at its lower end :1 lug 10 for taking hold of in opening the lid.

In some instances the lid 8 may stand vertical position'and in some cases it is also,

fit the lid indirectly by givine' each nut an inclined or V-shaped washer i3. ilfhe rear end of, the tube 11 is closed by threaded cap 14, the. removal of which admits of inserting a cleaning rod to clean the tuber The capis given a Tchfifidlfi 15, which en- Specification of Letters Patent.

causes the rod to rotate with the axle.

ables one to screw it tight without tools and also to pull on the lid 8 if it sticks in old grease or in snow, or otherwise. 7

Near the inner end the underside of the tube is provided with an oil outlet 16, which may be reduced to any desired size by covering more or less of it by movable collar 17, which is held in place by a set-screw l8. Near the outer end of the tube is provided an oil cup 19 having a screw cover 20 with K I c Patented June $3 191? Application filed December 30, 1916. berial No. 138,955.

end with a cone 2-6 having longitudinalcorrugaticns 27, which the inner sides or" the central cavity 3 in the-axle and thus To insure engagement the cone under pressure of a spring 28 whose outer end is 'resisted by a collar 2% having a diametrical pin 30 extending through the slot 25 in which it slidesv withthe collar, so that when the rod is rotated by the axle, the collar is resisted by and wears against" the front end oi the tube 11. The degree of compression oi the spring is thus automatically regulated by the distance, which vary some, between the end of the axle and the lid 8, after the tube 11 has been secured in the lid as o'er rectly as practical to suit said distance.

The-oil cup may be cast integral with the tube 11 or it may be threaded as 19 into a nipple l on the tube. And in applying the device to new lids 8,. the lid may have the washers l3 integral with the lid.

In operation, when the cup 19 isfilled with oil and the axle 2 rotates as the car is moving, the eagle rotates the-rod 23, whereby the Oil 18 prevented from clogging in'the tube 11 through which it is moved pertly'by" its gravity and partly by the spiral grooves 24, and drips as attll upon the material/I,

from whichthe axle draws it by contact and rotation, or itniay flow therefrom intoen oil groove in the hearingunderneath the axle; all of which may be so much varied that no exact form hashee'n ilhistrinzed.'

'What ll claim is l. The combination the lid a 'car axle box of tube swurcd said lidin axle box, of av tube secured in said lid in axial alinement with the axle, a rod rotatable in the tube and having its inner end spring-pressed into the center of the axle and its body provided with grooves, and an oil cup mounted'np'on the outer end of the tube to feed oil through the same,.said tube having beyond the inner side of the lid .in'its lower side an oil passage and means for regulating the size of said passage, and means-for adjusting saidtube in said lid according to the distance between the' lid and the end of the axle.

, 3. The combination with the lid of a car axle box, of a tube secured. in said lid in axial alinement with the axle, a rod rotatable in the tube and having its inner end' spring-pressed into the center or the axle and its body provided with grooves, and an oil cup mounted upon'the outer end of the tube to feed oil through the same, said tube having beyond the inner side of the lid in its lower side an oil passage and means for regulating the size of said passage, said grooves on the rod extending spirally about the same. a

4C. The'eombination with the lid of a car axle box, of an oil cupmounted upon the 1 outer side of the lid, a tube extending therefrom through the lid and having a controlled lateral outlet for oil within the box, agrooved rod slidable and rotatable Within the tube in axial line With the car axle, said rod having its inner end formed with a longitudinally grooved cone adapted to enter the center of the axle, and near said cone a longitudinal slot, a collar loosely fit-- ted on the rod and having a'pin extendingdiametrically through the slot, a compres .sion coil spring upon the rod between the cone and the collar, pressing the latter at all times against the inner end of the tube and thus holding the cone yieldingly in contact with the axle.

The combination with the lidof a car axle box, of an oil cup mounted upon the outer side of the lid, a tube extending therefrom through the lid and having a controlled lateral outlet for oil within the box,

a grooved rod slidable and rotatable Within the tube in. axial alinement with the car axle, said rod having its inner end formed with a longitudinally grooved cone adapted to enter the center of the axle, and near said cone a longitudinal slot, a collar loosely fitted on the rod and having a pin extending diametrically through the slot, a compres sion coil spring upon the rod between the cone and the collar, pressing the latter at all times against the inner end of the tube and thus holding the cone yieldingly in contact with the axle, said tube having its outer end normally open, and-a removable cap closing said open end of the tube.

In testimony whereof I aiiix my signature.

" OTTO MILLER. 

